MakerDAO's Oracle Security Module Delays Liquidations by 1-Hour

MakerDAO, a decentralized finance (DeFi) platform, has been employing an Oracle Security Module (OSM) to manage its liquidation processes. This module has been observed to cause a delay in the actual liquidation price compared to the market price.

On March 30th, the price of Ethereum (ETH) on a trading platform dropped to a minimum of $1786. Despite this significant drop, a whale's position on MakerDAO was not liquidated even though it fell below the liquidation price. This discrepancy is attributed to the OSM, which introduces a delay in updating the system price to prevent short-term market fluctuations from being exploited.

The OSM collects data from multiple authorized price feeders and calculates the median as the reference price through the Medianizer contract. This reference price is then applied with approximately a 1-hour delay. For instance, as of the latest data, the system price of MakerDAO is $1831.25, while the market price of Ethereum is $1806.89. This delay ensures that the system is not affected by sudden price changes, thereby protecting the stability of the platform.

This mechanism, while beneficial for maintaining stability, can also lead to situations where the actual liquidation price lags behind the market price. This delay is a deliberate design choice to safeguard the platform from potential manipulation and to ensure that liquidations occur at more stable and reliable prices.

The use of the OSM highlights MakerDAO's commitment to security and stability within the DeFi ecosystem. By implementing such measures, MakerDAO aims to provide a more robust and reliable platform for its users, even if it means that liquidations may not occur instantaneously with market price changes.